Surface Segregation of Cyclic Chains in Binary Melts of Thin Polymer Films: The Influence of Constituent Concentration

Polymers

Mesfin Tsige¹  Genene T. Mola²  Francis M. Gaitho³  Giuseppe Pellicane³ 

[1] Physics, University of KwaZulu-Natal, Pietermaritzburg, Private Bag X01, Scottsville 3209, South Africa;Department of Polymer Science, University of Akron, Akron, OH 44325, USA;;School of Chemistry &

关键词: polymer melt;    concentration;    surface behavior;    interface;   

DOI  :  10.3390/polym10030324

来源: DOAJ

【 摘 要 】

We carry out extensive molecular dynamics simulations of thin films of bead-spring models of binary mixtures composed of cyclic and linear polymer chains. We study the equilibrium behavior of the polymer chains for two very different chain lengths, which resemble short (10-mers) and long (100-mers) chains, at different concentrations of the binary mixture. We clearly show how the concentration variable affects the enrichment of either of the two polymer species at the interface, and also how the chain length influences this process.

【 授权许可】

Unknown